From: Russet McMillan
Subject: 3.5m Night Log 990731
Date: Sun,  1 Aug 1999 06:00:53 -0600 (MDT)
                          SATURDAY JULY 31, 1999
                         APACHE POINT OBSERVATORY
                              OBSERVING  LOG
                                                          ACTUAL
ASTRONOMER      OBSERVER(S)        INSTRUMENT   DATE   START FINISH
Kent            Annis                 GRIM    7/31-8/1   --    --
 INST        SCHEDULED     WEATH     EQUIP      OBS    DAY   NOTUSED
I/RS/DN    START FINISH   D    B    D    B    D    B   USE   D    B
UC06       21:36  04:43   0   3.2  0.8  3.1   0    0    0    0    0
(note: times listed include instrument change time)
                              ACTIVITY LOG
(* means a trouble report has been issued or appended to)
Observing specialist: R. McMillan
The telescope was not opened tonight due to a combination of bad
weather and equipment trouble.  A lightning strike this afternoon took
out most of the phones, and possibly also caused an error to show up
on the tertiary tip/tilt motors.  In the process of homing the
tertiary to clear the errors, I discovered some more serious problems.
Mark Klaene and I eventually traced these to some loose wires in the
tertiary control.  By 01:30 the tertiary was functional again, but
high humidity and clouds kept the telescope closed anyway.
                            OBSERVER COMMENTS
                                FOCUS LOG
                              JULY 31 1999
						 Wind
Time   Inst        Focus     Az  El   #Temp    Dir  MPH  filt  FWHM "
#First temp is air, second temp is telescope.
                                 WEATHER
                               JULY 31 1999
                               Wind
     Time   Temp F Dewp F  MPH  Direction    Dust      Sky      Precip.
     16:01    56    47      8    81  (E)      574    ptly cldy   none
     17:01    58    50      7   131  (SE)     633    ptly cldy   none
     18:01    60    45     11   169  (SSE)    441    ptly cldy   none
     19:01    62    45      9   180  (S)      428     cloudy     none
     20:01    60    44      1   189  (S)      460     cloudy     none
     21:01    54    47      8   181  (S)      673     cloudy     none
     22:01    52    49     11   207  (SSW)   2884     cloudy     none
     23:01    51    50      8   110  (ESE)   2776     cloudy     rain
     00:01    51    45      7   186  (S)      272     cloudy     rain
     01:01    50    48     15    75  (ENE)    770     cloudy     none
     02:01    50    48     14    83  (E)      563     cloudy     none
     03:01    52    46     15   139  (SE)     406     cloudy     none
     04:01    54    46      6   222  (SW)    1123     cloudy     none
     05:01    55    44      2   189  (S)     1187     cloudy     none
note: the wind was coming from the azimuth listed.  The convention
used is north=0 degrees, east=90 degrees.  The dust count is particles
> 1 micron per 0.1 cu. ft.
                             TELESCOPE STATUS
Primary, secondary, and tertiary mirrors in place and collimated.
Primary support system operational.  Mirror ventilation system in
place.  Telescope drives operational.  Current Remark version: 2.55b5.
Current guide software version: GIm Ctrlv3.0b27.
- Russet McMillan